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load calculation: include unfinished basement sq footage ?

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    load calculation: include unfinished basement sq footage ?

    When multipying house sq footage times 3 for load calculation of lighting and receptacle load, do you include an unfinished basement ? Thank you

    #2
    I don’t.
    Tom
    TBLO

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      #3
      If it is capable of being finished then yes you do.
      They say I shot a man named Gray and took his wife to Italy
      She inherited a million bucks and when she died it came to me
      I can't help it if I'm lucky

      Comment


        #4
        For optional calc..


        220.82(B) General Loads. The general calculated load shall be not
        less than 100 percent of the first 10 kVA plus 40 percent of the
        remainder of the following loads:
        (1) 33 volt-amperes/m2 or 3 volt-amperes/ft2 for general
        lighting and general-use receptacles. The floor area for
        each floor shall be calculated from the outside dimensions
        of the dwelling unit. The calculated floor area shall
        not include open porches, garages, or unused or unfinished
        spaces not adaptable for future use.
        They say I shot a man named Gray and took his wife to Italy
        She inherited a million bucks and when she died it came to me
        I can't help it if I'm lucky

        Comment


          #5
          For standard calc

          220.12 Lighting Load for Specified Occupancies. A unit load
          of not less than that specified in Table 220.12 for occupancies
          specified shall constitute the minimum lighting load. The floor
          area for each floor shall be calculated from the outside dimensions
          of the building, dwelling unit, or other area involved. For
          dwelling units, the calculated floor area shall not include open
          porches, garages, or unused or unfinished spaces not adaptable
          for future use
          .
          They say I shot a man named Gray and took his wife to Italy
          She inherited a million bucks and when she died it came to me
          I can't help it if I'm lucky

          Comment


            #6
            Houses under 3500 square feet are not required to have formal plans or load calculations submitted to the permitting authority. But I always install 200A service for any new house, so that should cover everything.

            Comment


              #7
              Originally posted by jeff48356 View Post
              Houses under 3500 square feet are not required to have formal plans or load calculations submitted to the permitting authority. But I always install 200A service for any new house, so that should cover everything.
              i've never heard of this.

              Comment


                #8
                Originally posted by drktmplr12 View Post

                i've never heard of this.
                It's in the Michigan Residential Code.

                Comment


                  #9
                  Until recently we have never had a load calculation done for a residence. One area around here has started to require it but I have done them for myself when there are additions involved.
                  They say I shot a man named Gray and took his wife to Italy
                  She inherited a million bucks and when she died it came to me
                  I can't help it if I'm lucky

                  Comment

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